Improvement in extension-table slides



1.0. FROST.

Extension-Table Slide.

N0,162,()49, I PatentedAprill3.I875.

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UNITED STATES PATENT OFFICE.

JAMES o. FROST, or TOWANDA, PENNSYLVANIA.

IMPROVEMENT IN EXTENSION-TABLE SLIDES.

Specification forming part of Letters Patent No. 162,049, dated April13, 1875; application filed March 12, 1875.

To all whom it may concern:

Be it known that I, JAMES 0. Fnosr, of Towanda, in the county ofBradford and State of Pennsylvania, have invented a new and ImprovedTable-Slide; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawing, forming a part of this specification, in which-Figure l is a plan view; Fig. 2, a transverse section through line 00 x.

This invention relates to certain improt'ements in extension-tableslides; and it consists in a plate having hooked-shaped extremitieswhich grasp the frame-pieces, an extension or tongue in between thehooks, which moves in a groovein theframe-pieces, and a dovetailextension upon the outside which forms a rigid connection for the plateto the frame-pieces, without the use of screws, all combined andarranged as hereinafter more fully described.

In the drawing, A represents the metallic plate, which is provided withend hooks a a, an intermediate tongue or extension, I), and a dovetailedextension, 0. B represents the frame-pieces, which are constructed withmolded edges (1, which fit into the hooks to, and serve as a connectionto fasten the framepieces together, and also as guideways for theplates. Said frame-pieces B have also central longitudinal grooves G, inwhich the tongue b slides, for the purpose of maintaining the weight ofleaves. The dovetail extensions 0 are attached to the middle of theplate A, on the side opposite the extension or tongue I), and arerigidly fastened to the frame-pieces B in the holes 8, which are boredin the ends of the frame-piece B, and the dovetailed extensions fastenedtherein by plugs, the dovetailed extension of the plate attached to oneframe-piece being in alignment with the movable tongue of the plateattached to the next frame-piece.

I am aware of the fact that double T- shaped plates, and also plateswith hooked ends and intermediate tongues have been used; but theserequire to be fastened to the wood by means of screws. I, therefore,disclaim these and confine myself to the particular construction of mydevice, whereby the use of screws is dispensed with.

Having thus described my invention, what I claim as new is The plate A,having hooks a, tongue I), and dovetail'extension c, in combination withthe frame-pieces B, having holes 8, in which said dovetail-extensionsare fastened by plugs, substantially as and for the purpose described.

JAMES O. FROST.

Witnesses:

W. H. DODGE, D. R. LATHROP.

